Powder mixer



Jan. 12, 1954 A. L. HALL 2,665,890

POWDER MIXER Filed Jan. 25, 1952 2 Sheets-Sheet INVENTOR.

JZLHQZZ & Z M $2 2 35.

Patented Jan. 12, 1954 STATES This invention relates to a mixing device for mixing dry powdered or granular material.

An object of this invention is to provide a mixin device for mixing powders, such as face powders or for mixing self-rising flour, whereby the ingredients making up the material will be thoroughly mixed together.

Another object of this invention is to provide a mixing device which is adapted to be rotated during the mixing operation and is constructed in the form of a wabbling housing which is adapted to throw the material about the interior thereof during the rotation of the housing.

A further object of this invention is to provide a mixing device which can be used for mixing various kinds and types of powdered or granular material, and may be rotated either by means of a hand crank or a power means.

With the above and other objects in view, my invention consists in the arrangement, combination and details of construction disclosed in the drawings and specification, and then more particularly pointed out in the appended claim.

In the drawings:

Figure l is a detailed side elevation of a mixer constructed according to an embodiment of this invention.

Figure 2 is a plan View of the device.

Figure 3 is a side elevation partly broken away and in section of the rotary mixer housing.

Figure 4 is a plan view of the housing removed from the base.

Figure 5 is a sectional view taken on the line 55 of Figure 3.

Referring to the drawings, the numeral Ill designates generally a base frame structure which includes a base member ll, uprights 12, with horizontal upper bars l3 carried by the uprights i2 and connected together by means of end connection bars It. A mixer housing, generally designated as i5, is rotatably carried by the base if} and is formed of a polygonal central housing or body it which, as shown in Figure 5, is square in transverse section.

The central body it has extending diagonally therethrough from one edge to a diagonal opposite edge and from an upper corner to a lower corner a shaft 11. The shaft I1 is journalled in bearings it carried by the upper frame bars 53, and one end of the shaft IT has a grooved pulley iea secured thereto. The diagonal mounting of the shaft il through the body i6 provides for supporting the body It on an angle to the vertical so as to produce a wabbling motion to the housing as the latter is rotated by the shaft ll.

The body S has extending from the opposite ends thereof tapered funnel-like members l9 and 20. The funnel-like members 19 and 2%) are oppositely disposed being formed with one side 2! thereof coplanar with a side of the body it and also having outwardly inclined walls or sides 22 and 23. The outer end of each funnel shaped receptacle l9 terminates in a cylindrical neck 23 on which a cap 25 is threadably mounted. The body It has disposed on the inner side thereof oppositely disposed pairs of longitudinally extending baflie plates 25. These baffle plates 26 will be disposed on an inclination to the vertical due to the inclined mounting of the housing I5 on the shaft l'i.

It will be understood that, if desired, a hand crank or the like may be secured to the shaft I? for manually rotating the housing l5 if desired. In the present instance, a power member 21 is carried by the base it and includes a grooved pulley 28 about which an endless belt 29 engages, with belt 29 also engaging about pulley [9a.

The mixing device hereinbefore described is designed for mixing of face powders, self-rising flour or other powdered material. The housing I5 is partially filled with several powdered ingredients by disposing one of the funnel shaped members l9 and 20 uppermost and removing the cap 25, which is uppermost. The housing 15 may then be rotated at the desired speed, and in the rotation of the housing 15, the material will slide down into the funnel shaped member which is lowermost, passing over the inclined bafiies 2t and into the lower funnel shaped member 20.

The housing [5 is preferably rotated at a relatively slow rate so that the material will not be held in the receptacle or funnel shaped members l9 and 20 by centrifugal force. This mixing device will provide a means whereby a powdered ingredient; such as face powder or selfrising flour; may be thoroughly and evenly mixed together in a dry state and within a relatively short period of time. When the powder has been thoroughly and intimately mixed as to the ingredients thereof, the mixture may then be removed from the housing III by disposing the same in a position where one of the caps 25 is lowermost. The lower cap is then removed and the powder will gravitatingly flow from the lower funnel shaped member into the desired receiver.

I do not mean to confine myself to the exact details of construction herein disclosed, but claim all variations falling within the purview of the appended claim.

What is claimed is:

A dry powder mixer comprising a rotatably mounted hollow body which has a pair of 0pposed open ends, a tapered funnel-shaped member having inclined Walls and extending from each end in communication therewith, the apex of one member being diagonally disposed with respect to the apex of the other member and the apex of one member being in alignment with one side of the body while the apex of the other member is in alignment with the opposite side of the body, the inclined walls of said members serving to shift powder transversely of the body from one apex to the other during rotation of the body, removable closures on the apex of each member, a shaft fixed to and extending through V the body, said shaft extending through diagonally opposite corners of the body and having its longitudinal axis lying on a line oblique to a line joining the apices of the members, said body being disposed on an oblique angle to said shaft, opposed pairs of baflies in said body and extending axially between the open ends, and means rotatably supporting said shaft.

ARTHUR L. HALL.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 688,096 Journeay Dec. 3, 1901 1,424,154 Clark Aug. 1, 1922 2,018,082 Muench et a1. Oct. 22, 1935 2,267,898 Cornell Dec. 30, 1941 

